<html>
<head>
</head>
<body>
  <div style="transform: rotatey(90deg); transform-style: preserve-3d; width:100px; opacity:0.5">
    <div style="transform: rotatey(90deg); width: 100px; height: 100px; background-color: #00FF00"></div>
  </div>
</body>
</html>
